02/21/2002
15-462 Graphics I
32
Grids
•Convenience
for uniform evaluators
•Define
grid (nu = number of u division)
•Evaluate
grid
•mode
= GL_POINT, GL_LINE, or GL_FILL
•i and
k define subrange
glMapGrid2f(nu,
u0, u1, nv, v0, v1);
glEvalMesh2(mode,
i0, i1, k0, k1);